Temp Sending Unit

Reply Subscribe

Thread Tools

Search this Thread

Nov 4, 2015 | 03:38 PM

dvideo22

Thread Starter

Junior User

Joined: Jun 2007

Posts: 67

Likes: 0

Temp Sending Unit

1983 Bronco II, 351w
My temp gauge reads full tilt hot, when I bought it.
I bought a new sending unit and it still reads the same.

Anyone see this or have a suggestion?

Thnx

Nov 5, 2015 | 09:27 AM

hoytshooter119

New User

Joined: Oct 2011

Posts: 8

Likes: 0

Is this reading immediately upon start up or key on?

Nov 5, 2015 | 03:01 PM

87 XLT

Postmaster

Joined: Oct 2003

Posts: 4,516

Likes: 1

From: SoCal

Quote:

Originally Posted by hoytshooter119

Is this reading immediately upon start up or key on?

Good question, if it's only pegged hot with the key on, remove the connector from the sender dont let it touch metal. If the gauge is still pegged look for a bare spot in the wire thats grounded to metal.

Nov 5, 2015 | 03:07 PM

dvideo22

Thread Starter

Junior User

Joined: Jun 2007

Posts: 67

Likes: 0

After the replacement, I only turned the key on and waited 10 sec. I didn't not actually start it up.
Will start to confirm.

Nov 30, 2015 | 07:32 AM

dvideo22

Thread Starter

Junior User

Joined: Jun 2007

Posts: 67

Likes: 0

So, I plugged the wire onto the other post and still it does not work correctly. Temp just always reads full tilt hot or nearly. Every once in awhile, it'll move a tiny bit.

Nov 30, 2015 | 02:28 PM

87 XLT

Postmaster

Joined: Oct 2003

Posts: 4,516

Likes: 1

From: SoCal

Might be different on yours, but most Fords have a 2 "post" engine coolant temp sensor that gives temp info to the computer.

And most Fords have a single post single wire coolant temp sender for the gauge. The wire is usually red with a white stripe.

Whats this second post you're talking about??

Nov 30, 2015 | 03:08 PM

dvideo22

Thread Starter

Junior User

Joined: Jun 2007

Posts: 67

Likes: 0

The old unit and the new one as well, both have 2 posts down inside the top. It had only one wire running to it. With the old one, I tried switching the wire to the other post and back again, no work. So I bought a new unit and tried the same thing, no work. Should there be 2 wires running to it?
Thanks.